We report recent results obtained with a novel optical fiber experimental setup based on a heterodyne optical time-domain reflectometer in the context of FPU recurrence process. metry (OTDR), covering its principle, impl e an essential tool for: characterisation, certification, maintenance and monitoring optical networks. They characterise the len th, attenuation and return loss (ov se individual events along ink: connection points (splices, connectors), te ng by. from Hughes Research Laboratory in 1976 (Barnoski and Jensen 1976), and then Stewart D. Develop an OTDR for optical data transmission networks, which helps: The device should be small-sized and powered from a 220 V / 50 Hz network, 24x7, or from a built-in battery for at least 8 hours. A processor board based on the Texas Instruments AM3505 (Cortex a8) 600 MHz with 128 MB LpDDR and. Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Science, 125009 Moscow, Russia Scientific Educational Centre "Photonics and IR Engineering", Bauman Moscow State Technical University, 105005 Moscow, Russia Author to whom correspondence should be addressed.
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